export function getOnePageRelatedKnowledgeItems(chapterNum, videoNum, sentenceSeq) {
    if (chapterNum === 1 && videoNum === 9) {
        if (sentenceSeq === 1) {
            let datas = {
                words: [
                    {content: '頑張る③-加油,1类'}
                ],
                grammars: [
                    {content: '动词分类\n' +
                            '1类：除去2类和3类\n' +
                            '2类：い段或え段+る\n' +
                            '3类：见名知意汉字词+する'
                    },
                    {content: '动词接续型-て型\n' +
                            '1类：る->って\n' +
                            '2类：る->て\n' +
                            '3类：する->して'
                    },
                    {content: 'てください-请,\n' +
                            'ください可省略'
                    },
                    {content: 'ね-句尾语气词,呢,呀'}
                ]
            };
            return datas;
        }
        if (sentenceSeq === 2) {
            let datas = {
                words: [
                    {content: 'いい①-好,真好,够了'},
                    {content: '帰る①-回家,特殊1类'}
                ],
                grammars: [
                    {content: 'な-句尾语气词,啊'},
                    {content: 'もう-已经'},
                    {
                        content: '动词能力型-れる型\n' +
                            '1类：最后一个假名->え段+る\n' +
                            '2类：最后一个假名->られる\n' +
                            '3类：する->できる'
                    },
                    {
                        content: 'ている-正在……,\n' +
                            'いる或い可省略'
                    }
                ]
            };
            return datas;
        }
        if (sentenceSeq === 3) {
            let datas = {
                words: [
                    {content: '放課後⓪-放学后'},
                    {content: '練習⓪-练习'},
                    {content: '嫌だ②-讨厌的,\nな形容词'}
                ],
                grammars: [
                    {content: 'の-的'}
                ]
            };
            return datas;
        }
        if (sentenceSeq === 4) {
            let datas = {
                words: [
                    {content: '行く⓪-去,走,1类'}
                ],
                grammars: [
                    {
                        content: 'ぞ-句尾语气词,\n' +
                            '男性用语,哦'
                    }
                ]
            };
            return datas;
        }
        if (sentenceSeq === 5) {
            let datas = {
                words: [
                    {content: '呼ぶ②-叫,1类'}
                ],
                grammars: [
                    {
                        content: 'ほら-哎呀,看,\n' +
                            '引起注意'
                    },
                    {content: 'が-提示动作主体'},
                    {
                        content: '动词接续型-て型\n' +
                            '1类：る->って\n' +
                            '2类：る->て\n' +
                            '3类：する->して'
                    },
                    {
                        content: '动词接续型-て型\n' +
                            '1类：ぶ->んで'
                    },
                    {content: 'よ-句尾语气词,哦'}
                ]
            };
            return datas;
        }
        if (sentenceSeq === 6) {
            let datas = {
                words: [],
                grammars: []
            };
            return datas;
        }
        if (sentenceSeq === 7) {
            let datas = {
                words: [
                    {content: '歌う⓪-唱歌,1类'}
                ],
                grammars: [
                    {
                        content: '动词意志型-おう型\n' +
                            '1类: 最后一个假名\n' +
                            '->お段+う'
                    },
                    {content: 'なら-如果'}
                ]
            };
            return datas;
        }
        if (sentenceSeq === 8) {
            let datas = {
                words: [
                    {content: 'やる⓪-做,1类'}
                ],
                grammars: []
            };
            return datas;
        }
        if (sentenceSeq === 9) {
            let datas = {
                words: [
                    {
                        content: '張り切る③\n' +
                            '-干劲十足,1类(切る)'
                    }
                ],
                grammars: [
                    {content: 'ね-句尾语气词,呢,呀'}
                ]
            };
            return datas;
        }
    }
}

export function getVideoTitleByVideoNum(chapterNum, videoNum) {
    if (chapterNum === 1) {
        if (videoNum === 14) {
            return "小丸子5句日语：热情 VS 着火？";
        }
    }
}